A scintillation ntesyog ib qho cuab yeej siv los ntsuas thiab ntsuas ionizing hluav taws xob xws li gamma rays thiab X-rays.
Lub hauv paus ntsiab lus ua haujlwm ntawm ascintillation ntestuaj yeem sau tau raws li hauv qab no:
1. Cov khoom siv scintillation: Lub tshuab ntes yog tsim los ntawm cov khoom siv hluav taws xob los yog cov kua nplaum.Cov ntaub ntawv no muaj cov cuab yeej ntawm emitting lub teeb thaum zoo siab los ntawm ionizing hluav taws xob.
2. Teeb meem hluav taws xob: Thaum ionizing hluav taws xob cuam tshuam nrog cov khoom siv hluav taws xob, nws hloov qee qhov ntawm nws lub zog mus rau lub plhaub hluav taws xob ntawm cov atoms hauv cov khoom.
3. Excitation thiab de-excitation: Lub zog xa mus rau lub plhaub hluav taws xob ua rau cov atom lossis molecules nyob rau hauv cov khoom siv scintillation kom zoo siab.Cov zoo siab atoms los yog molecules sai sai rov qab los rau hauv lawv lub xeev, tso lub zog tshaj nyob rau hauv daim ntawv ntawm photons.
4. Generation ntawm lub teeb: Cov photons tso tawm yog emission nyob rau hauv tag nrho cov kev taw qhia, tsim flashes ntawm lub teeb nyob rau hauv lub scintillation khoom.
5. Kev kuaj pom lub teeb: Tom qab ntawd cov photons emitted los ntawm lub photodetector, xws li photomultiplier raj (PMT) lossis silicon photomultiplier raj (SiPM).Cov khoom siv no hloov cov photons tuaj rau hauv cov teeb liab hluav taws xob.
6. Teeb liab amplification: Lub teeb liab hluav taws xob tsim los ntawm photodetector yog amplified kom nws siv.
7. Kev teeb tsa thiab kev tshuaj xyuas: Lub teeb liab hluav taws xob amplified yog ua tiav thiab tshuaj xyuas los ntawm hluav taws xob circuits.Qhov no yuav suav nrog kev hloov pauv cov cim analog rau cov teeb liab digital, suav cov lej ntawm photons kuaj pom, ntsuas lawv lub zog thiab sau cov ntaub ntawv.
Los ntawm kev ntsuas qhov siv thiab lub sijhawm ntawm lub flash tsim los ntawm ascintillation ntes, cov yam ntxwv ntawm qhov xwm txheej hluav taws xob, xws li nws lub zog, kev siv zog, thiab lub sijhawm tuaj txog, tuaj yeem txiav txim siab.Cov ntaub ntawv no tuaj yeem siv rau ntau yam kev siv hauv kev kho mob duab, nuclear fais fab nroj tsuag, kev saib xyuas ib puag ncig, thiab lwm yam.
Post lub sij hawm: Nov-16-2023